The Cambrian is a pivotal geological period that marked a dramatic blossoming of life on Earth. During this ancient time, nearly all major animal phyla suddenly appeared in the fossil record, an event known as the Cambrian Explosion.
The Cambrian is a pivotal geological period that marked a dramatic blossoming of life on Earth. During this ancient time, nearly all major animal phyla suddenly appeared in the fossil record, an event known as the Cambrian Explosion.